mon_PocketVoltex/Software/WebConfig/js/usbWrapper.js

// Perhaps at some point I will release an Electron app, too
// This will facilitate that.

(function(window, document, navigator) {
"use strict";

var UsbWrapper = new function() {
    this.hasUSB = navigator && navigator.usb;
    
    if(!this.hasUSB)
        return;
    
    // returns a promise
    this.connect = (vids, pids) => {
        var filters = [];
        for(let i = 0; i < vids.length; i++) {
            filters.push({ vendorId: vids[i], productId: pids[i] });
        }
        return navigator.usb.requestDevice({filters: filters})
        .catch(error => {
            console.log(error);
            return null;
        });
    };
    
    this.usb = navigator.usb;
};

window.UsbWrapper = UsbWrapper;
})(window, document, navigator);